thanks, picking this up now.

Yes, this appears to simply be an issue with our new ASM direct-to-bytecode compiler. (We have two BoxPilers in BoxLang-- one that transpiles to java source and then compiles via javac, and one that compiles directly to bytecode via ASM). The issue is likely reproduceable in certain situations based on the code around the loop at the time.

I can reproduce your error. It seems to be related to being inside a component and using a break statement. My JUnit test is

where the contents of ASMError.cfc is

assigning this to you. I’m committing the failing (but disabled) test in the ClassTest class.

docker ortussolutions/boxlang:miniserver-snapshot with bx-esapi,bx-mysql,bx-ini,bx-unsafe-evaluate if that makes a difference

While trying to get to work I got:

Actual code for the testcase I build to reproduce is the following Application.cfc:

If I replace it with your loop, it works. Maybe some constants get folded in the compiler?

Do/while loops are certainly supported and have been since the beginning! Here is one of our passing tests for them, which was added well over a year ago:

And the exact code in this ticket runs fine on try boxlang

Can you explain what you’re seeing when you try to run this?